Do not compile with Xcode 26 beta 3

[hlemai]

Hello,

For information, fo now the package doesn't compile on MacOS 26 beta 3 or on MacOS 15.5 with Xcode 26 beta 3.

it fails on createTask<R: Sendable>( priority: TaskPriority? = nil, operation: @escaping @Sendable () async throws -> R, onComplete completion: @escaping @Sendable () -> Void

with Cannot convert value of type 'TaskPriority?' to expected argument type 'String?'

Regards